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NCA
2008
IEEE
13 years 11 months ago
FOSeL: Filtering by Helping an Overlay Security Layer to Mitigate DoS Attacks
Denial of service (DoS) attacks are major threat against availability in the Internet. A large number of countermeasure techniques try to detect attack and then filter out DoS at...
Hakem Beitollahi, Geert Deconinck
ITS
2000
Springer
110views Multimedia» more  ITS 2000»
13 years 8 months ago
Limitations of Student Control: Do Students Know When They Need Help?
Intelligent tutoring systems often emphasize learner control: They let the students decide when and how to use the system's intelligent and unintelligent help facilities. This...
Vincent Aleven, Kenneth R. Koedinger
HICSS
2009
IEEE
77views Biometrics» more  HICSS 2009»
14 years 3 days ago
Users of Open Source Software - How Do They Get Help?
A study was conducted across multiple open source software online technical help communities. This paper presents the types of discussions that occur, the types of questions asked...
Vandana Singh, Michael B. Twidale, David M. Nichol...
AIED
2005
Springer
13 years 10 months ago
What Do You Mean by to Help Learning of Metacognition?
Several computer-based learning support systems and methods help learners to master metacognitive activity. Which systems and methods are designed to eliminate which difficulties a...
Michiko Kayashima, Akiko Inaba, Riichiro Mizoguchi
SIGIR
2006
ACM
13 years 11 months ago
Why structural hints in queries do not help XML-retrieval
For many years it has been commonly held that a user who adds structural “hints” to a query will improve precision in an element retrieval search. At INEX 2005 we conducted an...
Andrew Trotman, Mounia Lalmas